Some women's belly b___tons pop out & others don't. With both my pregnancies mine never popped out but just filled out instead (looked flat). I only had singletons & both were a good size dd was 7lb 9.5oz & ds was 9lb 3oz. My sister in law only had a 6lb 2oz ds & her belly b___ton popped out rather soon in her pregnancy, & like POOF said by the time it pops out you'll have found out by then through ultrasound if your having more than one.

that is the thing though, I have not had an ultrasound yet...and I don't see my Dr. again until the end of June. I am a twin myself which means my chances of having twins is greater than if I weren't a twin. I just wasn't sure if your belly b___ton pops due to your uterus moving and getting higher.